I'm 22, have a healthy diet and exercise regularly, but for the past year I've had dry eyes that are regularly bloodshot, and in one I have a permanent enlarged blood vessel. Prescribed eye drops haven't helped. Can you?

Could the clue be in your exercise? Are you regularly dehydrating yourself (ie, not drinking enough fluids to compensate for the loss in sweat)? Try extra fluids, and drink water even when you're not thirsty. If you have truly dry eyes, you need to put in the drops every hour or so - perhaps you have used them too little. You may have a chronic conjunctival infection, so tests and an antibiotic ointment may help. If the dry eyes are linked to a dry mouth, you may have Sjögren's syndrome, in which other secretions (in the gut, joints and vagina) are also less than they should be. That needs expert advice, so see your GP.

My partner and I have cut out meat and dairy, and are since convinced we have more wrinkles. Could there be a link between our diet and ageing?

I don't know of any, but if you are eating too little protein (and you have lost your two main sources from your diet), you lose some skin elasticity. Elastin, which keeps skin supple, is a protein, so lose that and wrinkles surely follow. Check your diet with your GP, who will advise on what you may be missing. You don't mention if you smoke, which is the most common cause of accelerated wrinkling with age. Of course, the wrinkles may just be your natural ageing process, and the link with food just a coincidence.